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National Stock Number:
5310-01-182-4334
Federal Supply Class:
5310
National Item Identification Number:
011824334
Description:
WASHER,RECESSED
Detail:
A WASHER OF ANY PERIPHERAL SHAPE HAVING A CENTRALLY LOCATED HOLE. BOTH BEARING SURFACES ARE PARALLEL AND FLAT, BUT ONE OR BOTH OF THE BEARING SURFACES MUST BE BROKEN BY A COUNTERBORE, COUNTERSINK, OR SIMILARLY SHAPED RECESS. THE THICKNESS MUST NOT EXCEED 25 PER CENT OF THE OUTSIDE DIAMETER OR THE LARGEST OUTSIDE DIMENSION. THE MAXIMUM LIMIT OF THE TOLERANCE OR RANGE APPLIED TO THE THICKNESS AND/OR LARGEST OUTSIDE DIMENSION MUST BE USED TO DETERMINE COMPLIANCE. EXCLUDES WASHER, CONCAVE, RETAINER, PACKING, AND THRUST TYPE WASHERS. SEE ALSO SPACER, SLEEVE; AND SPACER, STEPPED.
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Manufacturer Information:
| 75A667231-2001 | K0289 | BRITISH AEROSPACE MILITARY AIRCRAFT & AEROSTRUCTURES | | 75A667231-2001 | K1987 | BAE SYSTEMS PLC | | 75A667231-2001 | U9143 | BAE SYSTEMS (OPERATIONS) LIMITED |
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Techincal Specification:
| HOLE DIAMETER | 0.250 INCHES MINIMUM AND 0.256 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | S143,FSCM K0289 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 1.020 INCHES NOMINAL | | OVERALL HEIGHT | 0.065 INCHES MINIMUM AND 0.080 INCHES MAXIMUM | | RADIUS | 0.030 INCHES NOMINAL | | RECESS DIAMETER | 0.438 INCHES NOMINAL | | SPECIAL FEATURES | ONE CUTOUT ON PERIPHERAL 0.046 IN. MIN,0.056 IN. MAX WIDTH,0.400 IN. FROM CENTER LINE TO TOP OF CUTOUT | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | S26-13,FSCM K0289 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL |
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